FR1316718A - Vacuum pump improvements - Google Patents

Vacuum pump improvements

Info

Publication number
FR1316718A
FR1316718A FR882986A FR882986A FR1316718A FR 1316718 A FR1316718 A FR 1316718A FR 882986 A FR882986 A FR 882986A FR 882986 A FR882986 A FR 882986A FR 1316718 A FR1316718 A FR 1316718A
Authority
FR
France
Prior art keywords
vacuum pump
pump improvements
vacuum
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR882986A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferranti International PLC
Original Assignee
Ferranti PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB4428760A external-priority patent/GB921666A/en
Application filed by Ferranti PLC filed Critical Ferranti PLC
Priority to FR882986A priority Critical patent/FR1316718A/en
Application granted granted Critical
Publication of FR1316718A publication Critical patent/FR1316718A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
FR882986A 1960-12-23 1961-12-23 Vacuum pump improvements Expired FR1316718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR882986A FR1316718A (en) 1960-12-23 1961-12-23 Vacuum pump improvements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4428760A GB921666A (en) 1960-12-23 1960-12-23 Improvements relating to vacuum pumps
FR882986A FR1316718A (en) 1960-12-23 1961-12-23 Vacuum pump improvements

Publications (1)

Publication Number Publication Date
FR1316718A true FR1316718A (en) 1963-02-01

Family

ID=26193675

Family Applications (1)

Application Number Title Priority Date Filing Date
FR882986A Expired FR1316718A (en) 1960-12-23 1961-12-23 Vacuum pump improvements

Country Status (1)

Country Link
FR (1) FR1316718A (en)

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